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BRIDGE FACE NOT PARALLEL WITH FRAME FACE - RESULTING PROBLEMS
1. Bridge lifts on impression
2. Cutting rules are abused and become dull.
3. Uneven cut top to bottom.
4. Overload of press.
5. Unnecessary makeready
6. Steel cutting plate is cut into and damaged.
7. Slippage of bridge lugs.
8. Bridge Cam failure
9. Unsatisfactory die cutting.
MAKEREADY PROBLEMS
If the makeready is soft due to special low rule, or for other reasons, the job will continually fade away and will also tend
to dull the cutting rule more than necessary.
Never use more than .003 gummed paper for spotting up. Gummed paper .006" thick will bear the form off and cause
overloading of the press.
Never use any kind of tape other than make-ready tape.
If a soft steel plate or brass plate is substituted for hard cutting plates, it is very likely that the machine will be
overloaded, causing a main shaft, bridge shaft, crank pin, or connecting rods to break.
Fiberboards that have been bonded together with silica, and also metal lined boards, which have uneven perforations and
are used for blow out proof gaskets, cause considerable trouble in fading out of work.
Plastics of varying density may cause inconsistent cutting.
Variation in moisture content of board and change in direction of grain will affect die cutting results.
Consult Make-ready manual for proper make-ready instructions
PROBLEMS WITH THE PRESS
(INCONSISTENT CUTTING)
A. Impression sleeve lock bolts loose.
B. Crank pins loosened or bent.
C. Worn main shaft bushings, or a broken main shaft
D. Connecting rod bushings are worn
E. Worn or stretched connecting rod
F. Insufficient impression to take up machine clearance.
Instruction Manual - 19" x 25"
Summary of Contents for VALUE LINE
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